#include<stdio.h>
#include<ctype.h>
int main()
{
	char c;
	printf("please input c\n");
	scanf("%c",&c);
	if(isalpha(c)){
		c=toupper(c);
		printf("result is %c",c);
	}else{
		printf("%c is not a alpha\n",c);
	}
	return 0;
}